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Rolling manufacturing method of high-performance asymmetric three-stage differential-thickness plate

A differential thick plate, three-stage technology, applied in the field of rolling preparation of high-performance asymmetric three-stage differential thick plate, can solve the problems of increasing manufacturing costs and achieve broad prospects

Inactive Publication Date: 2018-08-17
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, aluminum alloy strips need to adopt special welding or riveting methods in the automobile manufacturing process, which increases the manufacturing cost

Method used

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  • Rolling manufacturing method of high-performance asymmetric three-stage differential-thickness plate
  • Rolling manufacturing method of high-performance asymmetric three-stage differential-thickness plate
  • Rolling manufacturing method of high-performance asymmetric three-stage differential-thickness plate

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Experimental program
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preparation example Construction

[0032] like figure 1 As shown, a rolling preparation method of a high-performance asymmetric three-stage differential thick plate of the present invention comprises the following steps:

[0033] The first step: use aluminum alloy strips as raw materials, and the thickness of the aluminum alloy strips is 1-5mm;

[0034] The second step: process the aluminum alloy strip into a certain size, and the size is adjusted according to the actual size of the auto parts;

[0035] Step 3: Grease 2 is applied to the opposite surfaces of two aluminum alloy strips 1 with the same size to prevent the plastic process interface from being rolled together;

[0036] Step 4: Stack two aluminum alloy strips 1, and attach the sides coated with grease 2 to obtain stacked two-layer aluminum alloy strips 3;

[0037] Step 5: spot-weld the edges of the stacked two aluminum alloy strips to obtain an aluminum alloy composite strip;

[0038] Step 5: spot-weld the edges of the stacked two-layer aluminum a...

example 1

[0055] The thickness of the left side is 1.4mm, the thickness of the middle layer is 1.2mm, and the thickness of the right side is 1.0mm. The steps are as follows:

[0056] The first step: the aluminum alloy AA5052 strip is used as the raw material, and the thickness of the rolled piece is 1.5mm.

[0057]The second step: process the aluminum alloy plate and strip into a certain 2000mm×240mm strip.

[0058] Step 3: Apply grease to the surface of two aluminum alloys with exactly the same size.

[0059] Step 4: Stack the two aluminum alloys on the greased side.

[0060] Step 5: spot-weld the edges of the two stacked aluminum alloy strips, with one spot every 20mm.

[0061] Step 6: Roll the welded aluminum alloy composite strip with variable thickness. The thickness of the left side of the rolled piece is 2.8mm, the thickness of the middle layer is 2.4mm, and the thickness of the right side is 2.0mm.

[0062] Step 7: Cut off the weld spot at the edge of the rolled differential...

example 2

[0066] The asymmetrical three-stage differential thick plate with a thickness of 1.6mm on the left, a thickness of the middle layer of 1.2mm, and a thickness of 1.4mm on the right is prepared as follows:

[0067] The first step: the ultra-fine grain aluminum alloy AA6061 strip prepared by cryogenic rolling is used as the raw material, and the thickness of the rolled piece is 1.75mm.

[0068] The second step: process the aluminum alloy strip into a certain 1000mm×250mm strip.

[0069] Step 3: Apply grease to the surface of two aluminum alloys with exactly the same size.

[0070] Step 4: Stack the two aluminum alloys on the greased side.

[0071] Step 5: spot-weld the edges of the stacked two aluminum alloy strips, one spot every 40mm.

[0072] Step 6: Roll the welded aluminum alloy composite strip with variable thickness. The thickness of the left side of the rolled piece is 3.2mm, the thickness of the middle layer is 2.4mm, and the thickness of the right side is 2.8mm.

[...

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Abstract

The invention provides a rolling manufacturing method of a high-performance asymmetric three-stage differential-thickness plate. The rolling manufacturing method of the high-performance asymmetric three-stage differential-thickness plate comprises the steps that one surface of each of two aluminum alloy plate strips with completely the same size is coated with grease, and then the two aluminum alloy plate strips are stacked with the surfaces, coated with the grease, attached to each other; spot welding is conducted on the edges of the two stacked aluminum alloy plate strips, so that an aluminum alloy composite plate strip is obtained; three-stage variable-thickness rolling is conducted on the welded aluminum alloy composite plate strip, so that a continuous aluminum alloy gradient strip, namely a differential-thickness plate strip, is produced; welding spots on the edge of the rolled differential-thickness plate strip are removed; the differential-thickness plate strip is cut, so thatthree-stage differential-thickness plates in different shapes are machined; and the differential-thickness plates are separated, so that the asymmetric three-stage differential-thickness plate is manufactured. By adoption of the rolling manufacturing method of the high-performance asymmetric three-stage differential-thickness plate, continuous operation for the high-performance asymmetric aluminumalloy differential-thickness plate can be achieved, the high-performance asymmetric aluminum alloy differential-thickness plate produced through the method is expected to replace steel differential-thickness plates and steel tailor-welded plates and has broad application prospects in the fields of lightweight of automobiles and the like.

Description

technical field [0001] The invention belongs to the technical field of metal material rolling, and in particular relates to a rolling preparation method of a high-performance asymmetric three-stage differential thick plate. Background technique [0002] At present, the lightweight of automobiles has attracted widespread attention from the international community, and people are committed to reducing the weight of automobiles through various processes and technologies. Because, as the weight of the car decreases, the energy consumption of the car will be greatly reduced. [0003] One of the ways to reduce the weight of cars is to use high-strength aluminum alloy materials instead of steel plates. Compared with steel, the density of aluminum alloy is greatly reduced. However, the aluminum alloy strip needs to adopt a special welding method or riveting method in the automobile manufacturing process, which increases the manufacturing cost. At the same time, thick plates can b...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21B1/28B21B3/00
CPCB21B1/28B21B3/00B21B2003/001B21B2261/043
Inventor 喻海良崔晓辉王青山
Owner CENT SOUTH UNIV
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